W. P. Ker,
Epic and Romance: Essays on Medieval Literature
“ In an epic poem where the characters are vividly imagined, it follows naturally that their various moods and problems involve a variety of scenery and properties, and so the whole business of life comes into the story.The success of epic poetry depends on the author's power of imagining and representing characters. A kind of success and a kind of magnificence may be attained in stories, professing to be epic, in which there is no dramatic virtue, in which every new scene and new adventure merely goes to accumulate, in immortal verse, the proofs of the hero's nullity and insignificance. ”
